Old Hwy 41 No 3 Campground is a COE campground on Lake Allatoona, about an hour North of Atlanta. The campground is only open May till September. There are about 50 sites, most had water and 30/50 amp electricity, a few with sewer. There are some lake front sites that appear larger, and are more expensive. Basic water/electric sites are $28/night, full hook-ups are $36, Lakefront are $64/night. Fire rings, picnic tables are provided, a playground and a bathroom/shower building. There is a laundry room, Also a dump station. They only allow 2 pets per site. This is a boating/fishing campground so there is a boat ramp. It is close to I-75 and US 41, but it is in the woods, so some of the highway noise is muffled, only some! There is also an entrance station which provides some security! The gate is open from 7 AM until 10:30 PM. NO ONE gets in after hours!